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Differentiate Cos25º – Sin 25º

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Mathematics JAMB 2024

Differentiate Cos25º – Sin 25º

 

  • - ( Sin25º + Cos25º) checkmark
  • - ( Sec25 + Cot25)
  • - ( Cot25 + Sec25)
  • - ( Sin25 + Sec25)

The correct answer is: A

Explanation

Cos25º - Sin 25º

The differentiation of a constant = 0, But based on the Options provided

Cos 25º when differentiated = -Sin 25º and Sin25º = + Cos25º

Putting these together, we have - Sin25º - Cos25º = - ( Sin25º + Cos25º)  

There is an explanation video available .

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